ROKKER speakers are spec'd at 2 ohms impedance and 200 watts maximum input (130w RMS - 91db sensitivity), these speakers provide excellent on-highway performance Speaker drivers feature lightweight waterproof woven-fiber cones with super-rigid metal basket and a high-density lite-weight Neodymium magnet structure with integral high-output PEI tweeters Mounting hole pattern and spade electrical connections are exactly the same as the factory specification, this is a total plug-and-play no-modification solution complete with easy to follow installation instructions The ROKKER 2-channel 200w amplifier kit has been designed specifically for use in the fairing with the stock Harley 4.3 Std, 6.5GT or GTS touch-screen radio, and is tuned for the stock Harley flash, NO SPECIAL FLASH needed This new kit will also connect to the Sony 7000 or Fosgate replacement HD radios with direct RCA-RCA connections (ONLY) and is easily adjustable in the field with a small screwdriver Amplifier mounts to custom made stainless steel 2-piece bracket system, to provide solid and secure mounting inside the fairing Custom made plug-n-play wiring harnesses/RCA-RCA direct cable adapters are included with this complete audio kit, top quality heavy gauge power/ground wires are used for the fused battery connection, along with all necessary mounting hardware & complete installation/operation instructions Amplifier measures 6-1/2ö x 4-3/4ô x 1-3/4ö. AMP SPKERS200W15-22RG/RGU